Science of Synthesis

Sugamata, K.; Sasamori, T., Science of Synthesis Knowledge Updates, (2019) 2, 85.

As in the case of oxidative deprotection, photochemical electron-transfer in the presence of a photosensitizer can also promote the deprotection of S,S-acetals. A photoinitiated one-electron transfer from a cyclic S,S-acetal gives the corresponding radical cation species, hydrolysis of which affords the deprotected carbonyl compound (‌Scheme 16‌).[‌97‌,‌98‌]

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